4/1/2003

• Questions on statistical inferences for a mean or a proportion
  
• Preparation for Quiz 3 - Online Quizzes
• Statistical Inferences for two-way tables
• Observed Counts
  
• The relationship between two categorical variables is described by comparing appropriate percentages from the observed counts.
• Simpson's Paradox
• Expected Counts
• Chi-square statistic - a measure of the overall difference between the observed and expected counts
• Example - P:\data\math\QR\Python-Eggs.MTW